Possible compatibility problems with earlier versions marked with '*'.
---- XXXXXX XXXX/XX/XX
+--- 1.0pl4 1996/1/24
Added Sort PDU.
Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
the rank and record number.
+Adjustments to the frontend server.
+
+Fixed diagnostic BER dumper. It ignored the file argument.
+
--- 1.0pl3 1996/1/2
Various changes to retrieval module.